Chloe Moretz paints on the makeup for Jonathan Ross‘ Halloween Bash in London on Wednesday night (October 31).

The 15-year-old actress, dolled up as a witch, tweeted from inside the party, “Suchh a good night!! #Vampire #Witch and a #Devil!!! #Halloween #2012 @frangerdanger @lyndsymfonseca http://instagr.am/p/ReAp53DndD/”